1. Canvas design mouse drawing function to draw multiple parallel colored lines in one stroke
2. Tried adding drawing oCg.beginPath(); to the mouse event, but the event will be overwritten.
3. Add the same duplicate canvas, but the canvas is covered. 
1
0
0
認(rèn)證高級(jí)PHP講師
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
